Snap-hook



.r UNITED STATES PATENT OFFICE.

WVILLIAM BELLAIRS, OF MITCHELLVILLE, IOXVA.

SNAP-l-IOOK.

SPECIFICATION forming part of Letters Patent No. 279,4'77, dated June12, 1883.

Application filed February 19, 1883. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM BELLAIRS, a citizen of the United States,residi ng at Mitchellville, in the county of Poll( and State of Iowa,have invented certain new and useful Improvements in Snap-Hooks, ofwhich the following is a specification, reference being had therein tothe aecompanying drawings.

My invention relates to certain new and useful improvements insnap-hooks, but more particularly to' improvenents on the patent grantedto me by the United States Patent Office J une 5, 1866, No. 55,229,snap-hook.

The object of my invention is to construct a snap-hook that can bereadily adjusted to the ring in the loridle-bit, neck-yoke, or pole-chain ring, and other like purposes, that is not liable to be detaehed byaccident when in use, that willbe durable and eflicient, while the costof Construction will be .much less than required for the production ofthe snap covered by my former patent above named.

Referring to 'the drawings, Fi gure 1 represents a perspective view 'ofmy improved snap,

showing the parts in place and the snap closed. Fig. 2 is a longitudinalseetional view, showing the inner and outer hook and spring. Eig. 3 is adetail View, showing the inner hook.

' Similar letters refer to similar parts throughout the drawings.

My device, when complete, is formed of an outer and inner hook, a springand guide-pin,

and end loop.

The outer hook, A, is formed with an inwardl'y-turned lip, a and outwardprojections a', with an end loop, O, for the reception of a pol e-strap,halter-stem, or other devices whereon snaps are used. Hook A has alongitudinal recess or channel formed 011 its inner edges, and the outerend has a vertical slot, g, cut entirely through that portion of thehook, as shown in Fig. 2. The inner end of said recess or channelterninates in a square shoulder, h, against which one end of coiledspring f abuts, as shown in Fig. 2.

The inner hook, B, is formed somewhat similar in a part of itsConstruction to the outer hook, A. The outer end ofhook B is curvcdoutward and inward to conform to the shape and size of the same part ofhook A, and is provided with inward projections b and b', leaving asufficient space between said projections for'the passage of a ring. Anelongated space, e, is provided for the reception and play of the ring,the same as is produced by the Construction of the outer hook, A. Theinner hook, B, is forned fiat, and has an eX- tension rearward, with avertical projection, D, by which said hook B is retracted when desiredto hook or unhook said snap. The under side of said extension is fornedwith a square shoulder, c, against which the outer end of spring fabuts, and by which said hook B is forced to its place inside of hook,A. An angular slot, d, is formed on or in the lower edge of hook B, itsinner end terminating near shoulder c, through which passes stop-pin l,as shown in Fig. 2.

A coiled spring, f, is placed in a recess formed in the shank of hook A,the inner endof which rests against the shoulder 71, and the outer endagainst the shoulder c, as shown in Fig. 2.

In putting the parts together, the innerhook, B, is inserted by itsinner end through slot g to near the place for the pivot-pin or stop-pin*1 when springf is placed in the recess formed in hook A. Then the hookB is pushed in until the stop-pin i can be pushed through slot (l, whenthe parts are secured in place.

The operation is as follows Then desired to hook the snap onto a ring,the thumb or finger of the operator is pressed against the projection D,when the innerhook is retracted, leaving an open space between thepoints a and As soon as the ring has passed into the space e theprojection D is released, when the inner hook, B, is throwu out to 'itsplace against the stop-pin i by the coiled springf.

Having thus described my inventiou, what I claim, and desire to secureby Letters Patent, 1s--` i 1. A snap-hook'composed of an outer and innerhook, the inner hook sliding within the outer hook, as described, theouter hook havingan end loop for the reception of a strap er rope, saidhook slotted through its outer end, and recessed as described, the innerhook sl otted and i'ormed as described, and adapted to work against acoiled spring located in the shank IOO of the outer hook, substmtlly asand 'for the In. tesbnony whereof I affix my signature in purpose setfo'th; presence of two witnesses. 2. The combinat-on of the oute: hook,A, having an end 1001) C, slot g, shoulder 71, pin XVILLAM BELLAIBS.

5 7 and points a and a', With hook B, having' points I b', project on D,slot d, and shoulder XVtnesses:

DANIEL P. CLAYTONe substantially as shown and specified.

- I T c, adapted to Work aganst sp'ng j and pm E XV. H. Vw OODVVARD,

